Water-heating apparatus



May 17, 1927. i,628,s64

o. c. camu-TER WATER HEATING APPARATUS Filed Feb. 23. 1922 2 Sheets-Sheet 1 my www May 17,1927. 1,628,664

l o. c. GRUTTER WATER HEATING APPARATUS Filed Reb. 2s. 1922 z shows-sheet 2 \\\\\\\\\\\\\\\\\\\\\\\\\\\\NNM Patented May 17,1927.4 UNITED STATES PATENT OFFICE.

OTTO C. GRUTTER, F CRESTON, ILLINOIS.

WATER-HEATING APPARATUS.

Application led February 23, 1922. Serial No. 538,482.

My `present invention relates to what is commonly called ahot water coil of a furnace and amon the objects thereof are to get as mucho the body of the heating apparatus as possible down in the furnace to a" oint where it will be in close proximity to t e fire; to so shape the heating ap- "aratus that it may be placed at one side `of hblfurnace, out of the way when fuel is bein put in, and yet the `same will be suilcen y'longto securethe proper amount of heat absorbing surface; to provide a device of the Character' described with openings for the convenient introduction and use ofv a brush" or the like fhr removing scale from the interior ofthe apparatus; and such further objects, advantagesyand capabilities as will later more fullyappear.

My invention further resides in the com- "bination, construction and arrangement of parts illustratedin the accompanying drawings, and While I have shown therein a" referred embodiment, I desire the same to "e understood as illustrative only and not 1aslifnltlng my invention.

" In f the annexed drawings,

Flgl 1 is a perspectlveview ofm` new apparatuashowing the same applic to a hamaca;u o

Figz isa sectional plan view of Fig. 1.`

Fig. 3 isan` elevation of "my new heatingjlr apparatus; s

Fig. 4 is a sectional elevation substantially along` the plane `indicated by the line Haags. i

Fig. 5 is `a longitudinal section of the construction shown ln Fig; 3.

Fig Gis an end view of this construction.

Referring more in detail to the annexed drawings, numeral 1 designates in general a furnace provided with an opening` for a door `as customary andpreferably hav-ing an olf-set portion 2 for the accommodation of the heating apparatus B, together with its fetd and return pipes 4. This oi'set portion 2 also 'functions as a support for the heating apparatus 3.

The heating apparatus 3 comprises es- `sentially turc substantially horizontal main parts 6 and 7 connected by a downwardly "inclined part 8L This member 8` carries the body of the heating apparatus .to a point where it is in such close proximity tb the fire* that it will get the maxlmum amount of heat. This member 8 does not go below the fuel line and theret'tme it saves wcar and tear of actual Contact with the fuel and receives an adequate proportion of heat. The inner portion of this heater is bent inward laterally in a substantially horizontal direction to form the part 9, curved into substantial conformityto the interior wall of the furnace. Extending substantially centrally of member 3 and 1ongitudinally thereof, is a partition wall 10 Which divides this member into two channels, one `connected with a water supply pipey and theV other with a water return pipe.' It will therefore be understood that the heatof the lire will be absorbed by the casting yand transmitted to the Water inside of the same, which `water is then heated and rises to the upper channel 12 through which it flows, being ordinarily deliveredto a hot Water tank adjacent the furnacc,`though of course, this is not essential as the hot water may be delivered to any point desired. As the Water flows out through channel 12, cool Water is supplied through channel 13 to be in turn heated.

Cn the inner face of member `3, Where they .will be most fully exposed to the heat of the furnace fire, are a plurality of bosses 14, cast integral with the inner face of the heating coil.` Being cast solid, these members have not an internal cavity forthe collection of scale which would reduce the heatingr eiliciency of the bosses. These bosses therefore present a large amount of additional surface for the absorption of heat which is transmitted to the water `flowing throughtheapparatus to heatthe same. In order tomakc it `possible to remove any Scale which may collect on the interior of the heating member, open ings 15 and i6 are provided. which openings are closed by means of plugs 17. Upon removal of the plulgr 17 from opening 15, a wire brush or the like may be inserted und passed into either channel 12 or channel 13 for scratching from the walls thereof any scale or other foreign matter which may have collected` thereon. It is also possible to remove lug 17 from opening 16 and pass such a bruaili into channel 13 for removing,T scale from the walls thereof. With the pipes 4, removed from the outer end of member it is also possible to insert a brush into the openings in this end of the structure and clean out the outer end of channels 12 and 13.

Tt is of course understood that the specific description of structure set forth above may be departed from without departing from the spirit of my invention as set forth in this specification and the appended claims.

Having now described my invention, I claim l. A water heating apparatus comprising a conduit having two ports at one end thereof, one port for receiving a cold water pip'e and the other for a hot water pipe, a longitudinal partition in said conduit separating the two ports and forming two channels extending to the opposite end ot said conduit, the channels being connected at a position remote from the said ports, the conduitbeving downwardly curved in a portion intermediateits-ends and having a corresponding reverse curve to thereby dispose the two end portions of the conduit substantially in parallel horizontal planes, the downwardly curved portion having a clean-out port positioned to permit the insertion of a clean-out implement longitudinally of said portion.

2A water heating apparatus for inser- 1 tion into a 'furnace comprising a conduit having a port at one end thereof for communi- "cating with a cold water pipe and another i port in the same end forcommunicating with a hot water pipe,- a longitudinal partition within said conduit separating said ports and' extending toward the other end of said conduit, the outer end of said conduit being vadapted for resting on the bottom of a lire boxdoor opening, the next inner portion of the conduit being curved downwardly to dispose the innermost end of the conduit at a levelbelow the outer end, said curved portion having a port so disposed as to permit of the insertion of a clean-out implement longitudinally of said portion.

3. In a water heating apparatus, water supply and return pipes adapted to lead intoV a furnace, a heating member connected thereto and adapted to fit near one side of a furnace fire box, said member curving downwardly to have the inner portion below the level of the bottom of the furnace door, a clean-out port in the downwardly curved portion and the inner end curving laterally to approximate the wall curvature oi the lire box, said heating member having an internal position throughout the major portion of its length dividing the interior thereof into two channels, and an aperture at the inner extremity of the inwardly curved por- Y tionforthe insertion of a clean-out implement to clean either of said channels.

4:. A water heating apparatus for insertion into' a furnace comprising a conduit having a port at one end thereof for coininunicating with a cold water pipe and another port in the same end for communicating with a hot water pipe, a longitudinal partition within said conduit separating said ports and extending toi Yard the other end of said conduit, the outer end ol said conduit being adapted for resting on the bottom ot a lire box door opening, the next inner poi'- tion of the conduit being curved downwardly to dispose the innermost end olfv the conduit at a level below the outer end, said curved portion having a port so disposed as to permit of the insertion of a clean-out implement longitudinally ot said portion, the innermost portion of the conduit being curved to approximate tlie curvature of the inner fire box wall, the sides of the conduit nearest the lurnace wall being smooth and the side nearest the lire being provided with heat absorbing u bosses.

A water heating apparatus .tor insertion into a furnace comprising a conduit having a port at one end thereof for coinmunicating with a. cold 7:iter pipe and another port in the same end for communicating with a hot water pipe, a longitudinal pai'- t-ition within said conduit separating said ports and extending toward the other end of said conduit, the outer end of said conduit being adapted for rest-ing on the bottom of a fire box door opening, the next inner portion of the conduit being curved downwardly to dispose the innermost end of the conduit at a level below the outer end, said curved portion having a port so disposed as to permit of the insertion of a clean-out implement longitudinally of said portion, the extremity of the innermost portion of the conduit having a clean-out port so disposed as to permit of the insertion of a clean-out implement above and below the partition without removing the apparatus from the furnace.

6. In a structure of the character described, a heating apparatus partitioned into two channels, one carrying water supply pipe, and the other water return pipe, said heating apparatus adapted to lit near one` side of a furnace fire box, a downwardly iiiclined portion of said apparatus connecting a third portion of said aoparatus substantially parallel with the lirst portion, said rthird inner portion curving laterally to approximate the wall curvature or' the lire box, said heating member having in one wall. of the downwardly curving portion an aperture for the insertion of a clean-out implement, and a plug to close said aperture and. solid heat absorbing bosses on the face of the heating member.

my name to this specification.

OTTO C. GRUTTER.

lll() CERTIFICATE 0F CORRECTION.

Patent No. 1,628,664. Granted May I7, 1927, to

o'rTo c. GRUTTER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 52, claim 3, for the word "position" read "partition"; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 7th day of June, A. D. 1927.

M. J. Moore,

Qui. Acting Commissioner of Patents. 

